Swan Creek 31 Reservoir Report
Nearby: Swan Creek 32 Swan Creek 89
Last Updated: December 6, 2025
Swan Creek 31, located in Dewitt, Nebraska, is a vital flood risk reduction structure managed by the local government and designed by USDA NRCS.
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Summary
This earth dam, completed in 1997, stands at a height of 33 feet and has a structural height of 39 feet, serving the primary purpose of flood risk reduction along the TR-Swan Creek. With a storage capacity of 1,641 acre-feet and a drainage area of 4.4 square miles, Swan Creek 31 plays a crucial role in managing water flow and minimizing the risk of flooding in the surrounding Saline County area.
Managed by the Nebraska Department of Natural Resources, Swan Creek 31 is classified as a significant hazard potential dam with a satisfactory condition assessment as of May 2020. The dam undergoes regular inspections every three years to ensure its structural integrity and effectiveness in flood risk reduction. The surrounding community, including residents and officials, rely on Swan Creek 31 as a key infrastructure for water resource management and climate resilience in the region.
As part of the flood risk reduction measures, Swan Creek 31 has a spillway type and width that facilitate the controlled release of water during periods of high discharge. While the dam has not been modified in recent years, it continues to be a critical asset in the area's water management infrastructure. With a focus on safety and effective risk management, Swan Creek 31 remains a cornerstone in protecting the community and environment from the impacts of extreme weather events and water-related hazards.
Year Completed |
1997 |
Dam Length |
1390 |
Dam Height |
33 |
River Or Stream |
TR-SWAN CREEK |
Primary Dam Type |
Earth |
Surface Area |
34 |
Hydraulic Height |
32 |
Drainage Area |
4.4 |
Nid Storage |
1641 |
Structural Height |
39 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
39 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Turkey Creek Near De Witt
|
10cfs |
Big Blue River Near Crete
|
95cfs |
Little Blue River Near Fairbury
|
230cfs |
West Fork Big Blue River Nr Dorchester
|
39cfs |
Salt Creek At Roca
|
5cfs |
Little Blue R At Hollenberg
|
70cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Swan Creek 31
Swanton